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<h1>Coordinate axes</h1>

<p>The orientation of the coordinate axes for the local frames of vessels, celestial bodies and spaceports can be displayed with the <i>Axes</i> tab of the Visual helpers dialog (<kbd class="ctrl">Ctrl</kbd> <kbd class="ctrl">F9</kbd>). Coordinate frames can be useful in particular for addon designers who want to make sure that the orientation of their spacecraft design within the simulator is correct.</p>

<p>The display of coordinate axes is enabled by ticking the <i>Coordinate axes</i> box.</p>

<p>Axes can be displayed for:</p>

<p><ul>
<li>vessels (spacecraft)
<li>celestial bodies (planets and moons)
<li>surface bases
</ul></p>

<p>Unless the <i>Show negative axes</i> box is ticked, only the positive x, y and z axes are displayed.</p>

<p>The length of the axis vectors can be adjusted with the <i>Scale</i> slider.</p>

<p>The opacity of the displayed vectors can be adjusted with the <i>Opacity</i> slider.</p>
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